.. The difference between FF (type II, glycolytic) motor unit and S (type I) motor unit is that a S motor unit does not have? A more mitochondria within fibers more myoglobin within fibers C) a greater innervation ratio more capillaries around each fiber.

Q: Smooth muscle has actin/myosin, why is it not striated? (consider what striation can provide). What…

A: Types of muscles There are three major types of muscles in humans. These are, Skeletal muscle…

Q: Summation in a single muscle fibre means that Select one: a. the fibre increases the frequency of…

A: Introduction Muscle contraction:- It is the activation of tension-generating sites within muscle…

Q: Fast-twitch muscle fibers have which of the following characteristics?a. fewer number of…

A: Fast twitch muscle is a muscle which helps you to do short and quick responses

Q: Discuss some of the differences, and similarities if any, of smooth muscle contraction compared to…

A: The organ system that is involved majorly in the movement of the body is known as the muscular…

Q: Label the molecular components of the myofilaments from a close up view of a model of a relaxed…

A: Sarcomere: A sarcomere is the essential contractile unit of a muscle fiber. A sarcomere is made out…

Q: Given these events:(1) The sarcoplasmic reticulum releases Ca2+.(2) The sarcoplasmic reticulum takes…

A: The muscular system is the organ system comprising the skeletal, cardiac, and smooth muscles,…

Q: Put these events that occur in skeletal muscle in the correct chronological sequence: 1. Activation…

A: The membrane potential on the T-tubule membrane is sensed by a protein called the dihydropyridine…

Q: Based on your understanding of skeletal muscle fiber physiology, which of the following processes is…

A: ATP is the adenine tri phosphate and is the instant source of energy .It is used in many of the…

Q: arcoplasmIC hypertruphy a liml SIZE training? It adds more actin and myosin. It decreases glycogen…

A: Sarcoplasmic Hypertrophy  Cytoplasm of the muscle fiber or cell is referred as Sarcoplasm .…

Q: Which of the following is NOT correct regarding muscle contraction? O Ca++ in the sarcoplasm returns…

A: Muscle is defined as a group of tissues where they play a major role in producing motion and force,…

Q: Shortly after a person dies, Calcium ions diffuse out of the sarcoplasmic reticulum and the body…

A: Muscle cell is bundled structure formed by several myofibrils. Myofibril is a rod like structure…

Muscle Action

A change in the body or a bodily organ as a result of its functioning is referred to as an action. Muscle action can be defined as the specific movement of a bodily part generated by the contraction of a muscle. The muscle proteins actin and myosin are the important contractile proteins involved in muscle action. Muscle contraction, in addition to movement, serves several other important functions in the body, including posture, heat generation, and joint stability. Muscle contraction maintains posture, which includes standing and sitting.